Method for distributing warp threads in circular looms



SepE. 337 1949. v. M. .a. ANCIET METHOD FOR DISTRIBUTING WARP THREADS INCIRCULAR LOOMS Filed June 3, 1948 Patented Sept. 27, 1949 METHOD FORDISTRIBUTING WARP THREADS IN CIRCULAR LOOMS Victor Marie Joseph Ancet,Lyon, France, assignor to Regina S. A., Tangiers,

Morocco Application June 3, 1948, Serial No. 30,895 In France June 6,1947 This invention relates to circular looms and is concerned moreparticularly with a circular loom provided with novel means fordistributing the warp threads let ofI" the beams and guiding the threadsto the harness mechanism. In the loom, the harnesses may be constructedto handle the threads in groups during shedding without the threadsbeing injured by abrasion caused by rubbing of parts of the harnessesagainst them. 7

All circular looms are provided with distributing means which cause thewarp threads supplied from the beams to assume a tubular formation ontheir way to the heddles and, in my Patent 2,433,190, issued December23, 1947, I have disclosed such distributing means in the form of a reedor perforated plate, which is made up of a series of demountablerectilinear sections. The series of sections forms a polygonal structurehaving a large number of sides, which so closely approximates a circleas to provide proper distribution of the threads. The formation of thestructure of separate straight sections simplifies the manufacture ofthe sections and the insertion and removal of the threads.

In my copending application Serial N 0. 765,560, filed August 1, 1947, Idisclosed a harness mechanism comprising radially reciprocable slides inupper and lower levels with the outer ends of adjacent slides connectedby inner and outer deformable members, between which the heddles arestrung. The outer end of each slide lies between groups of warp threadson either side thereof and each member connecting a pair of slidesprojects a short distance laterally beyond each slide. It is, therefore,desirable to distribute the warp threads in such manner that the threadsare kept from contact with the slides and the projecting ends of themembers and abrasion of the threads is avoided.

The present invention is directed to the provision of novel means foruse in a circular loom for distributing the warp threads from the beamsand supplying the threads to a harness mechanism. The new distributingmeans include a plurality of straight distributing elements, which areof such length and so arranged that the groups of warp threads passingthrough adjacent elements to the heddle eyes of the harness mechanismare kept from contact with all other parts 2 Claims. (Cl. 13916) of themechanism. The distributing elements may be small reeds and, in thatevent, a circular guide is provided for so directing the threads betweenthe beams and the distributing reeds, that the threads are kept fromcontinued contact with the ends of the reeds. Accumulation of waste andflock between the dents of the reeds at the ends thereof is therebyavoided and the threads, as they are manipulated by the harnessmechanism, reciprocate between the dents and keep the reeds clean.

For a better understanding of the invention, reference may be made tothe accompanying drawing, in which Fig. 1 is an elevational view of aportion of a circular loom provided with the distributing means of theinvention} Fig. 2 'is a sectional view on the line 2.2 of Fig. 1;

Fig. 3 is a view partly in elevation and partly in section on the line3-3 of Fig. 1;

Fig. 3a is a view similar to Fig. 3 disclosing the prior artconstruction; and

Fig. 4 is a perspective View showing a portion of the harness mechanismemployed in the loom.

The loom illustrated is provided with a harness mechanism which includespairs of slides [0, ll extending radially from the loom axis and lyingone above the other, the slides of a pair being reciprocated in oppositedirections during the operation of the loom by means not shown. Eachslide has an outer end section l2 formed with upper and lower openingsnear each end thereof and each slide is connected to the adjacent slideon one side thereof in the same level by a pair of harness rods 13extending through the lower openings in the end sections l2 of theslides. Each slide is then connected to the slide on the other sidethereof in the same level by a pair of harness rods l3 extending throughthe upper openings in the end sections of the slides. The harness rodsmay be continuous or sectional and, in the loom shown, the rods are ofthe sectional type and each rod connects a pair 'of adjacent slides.Each rod is provided with enlarged heads l4 lying on the outer sides ofthe slides which it connects, and one of the heads is removable. Heddlewires l5 having eyes l5a for guiding the warp threads are mounted on theharness rods l3 connecting adjacent slides.

.pass around guide rods The warp threads passing to the heddle eyes areguided by a plurality of thread distributing elements 16, which may takethe form of small reeds arranged in a circular series about the loomaxis. Each reed is aligned with a space between adjacent pairs of slidesand the reed has openings for the individual threads passing to theheddles in that space. The length of each reed N is less than thedistance between adjacent slides, so that the group of threads leavingeach reed is somewhat fan-shaped A main circular reed H is mounted abovethe end sections 12 of the Slides and on the reed 11 move the shuttlesl8, by which the weft threads [9 are laid in place during tion. Belowthe reeds i6 is mounted a circular guide rod 29 and the warp threads '2!led from a pair of beams 22, of which onlyone isshown, 23, 24 on theirway to the rod 20.

In the operation of the loom, the shed for each shuttle is formed byreciprocati'on' of slides 18, H and, since each reed I6 is shorter thanthe length of space between adjacent slides, the slides may bereciprocated without the warp threads at the ends of a group leaving areed is being engaged by the slides or the heads M on the harness rods.

Theguide rod 2i! is disposed below reeds 16 at zibcutthe middle of eachreed, so that, as the warp threads 21 are moved apart to form the shed,as shown in Fig. 3, the threads move through the-spaces between thedents of reeds T6. The movement of the threads back and forth throughthe spaces tend 'to prevent the collection of waste and flock whichmight otherwise be carried into the cloth. In the prior constructionshown in Fig. 3a, in which the warp threads 21'' pass directly fromguide rod 24 to reeds 16', the threads bear against one endof each reedI6 at 'all times. As a result, the flock and waste tends to accumulatebetween the dents of reeds I 6' and is not continually removed, as 'inthe new construction.

What I claim is: 1

1. In a loom having beams supplying warp the weaving operathreads, thecombination of reciprocating radial slides disposed in pairs one abovethe other, inner and outer harness rods connecting adjacent slides inthe same level, heddles mounted on the harness rods between adjacentslides and having eyes for guiding the warp threads, and a plurality ofseparate thread distributing elements arranged in a circular sequencearound the loom axis and acting on the warp threads passing to theheddle eyes, each element being aligned with a space between adjacentpairs of slides and having guide openings for the individual threadspassing to the heddles in said space, the length of each distributingelement being less than the length of said space.

z In a loom having beams supplying warp threads, the combination ofreciprocating radial slides disposed in pairs one above the other,

inner and outer harness rods connecting adjacent slides in the samelevel, heddles mounted on the harness rods between adjacent slides andhaving "eyes for guiding the Warp threads, a plurality of separate reedsarranged in a circular sequence around the loom axis for guiding thewarp threads passing to the heddle eyes, each reed being aligned with aspace between adjacent .pairs of slides and having spaces for theindividual threads passing to the heddles in said space, the length ofea'chreed being less than the length of said space, and a guide actingon the warp threads passing to the reeds, the guide lying between theends of the reeds.

VICTOR MARIE JOSEPH ANCET.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 689,490 Hill Dec. 24, 1901920,503 Toyoda May 4, 1909 2,087,322 Jabouley July 20, 1937 2,433,190Ancet D60. 23, 1947

